Multiple tucking-guide for sewing-machines.



C. M. HORTON. MULTIPLE TUCKING GUIDE FOR SEWING MACHINES.

' APPLICATION FILED AUG-23 I911- Patented Sept. 7, 1915.

3 SHEETS-SHEET l.

INVENTOR 66d WITNESSES. far/Z14),

A TTORNE Y COLUMBIA PLANDLIRAPH'CKL, WASHINGTON; D- C.

C; M. HORTON.

MULTIPLE Tl JCKlNG GUIDE FOR SEWING MACHINES.

APPLICAUON FILED AUG-23. I911.

Patn'ted Sept. 7, 1915.

3 SHEETS-SHEET 2.

INVE/VTUR Wa ATTORNEY COLUMBIA IPLANDflD-APH 00.,WASHINUTON, D-C.

C. M. HORTON.

MULTIPLE TUCKING GUIDE FOR SEWING MACHINES.

APPLICATION FILED AUG-23 19H.

Patented Sept. 7, 1915.

3 SHEETS-SHEET 3.

. M/l/E/VTUR vw M A ITORNEY COLUMBIA PLANOGRAPH 420.. WASHINGTON, n. c.

MANUFACTURING COMPANY, e conro'R aIoN F JERSEY.

VIVIULTIILE summits-GUIDE res snwms-ivmonmns.

To all w 710m it mag concern Be it known that 1, CHARLES M. HORTON,

a citizen of the United States, residing at Elizabeth, in the countyof Union and State of New Jersey," have invented certain new and useful improvements in Multiple Tuck 'ing-Guides for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings. I d v This invention has for its object to facilitate the construction of multiple-tuck-fold such manner as to avoid interference with the lead of the threads of multiple-needle sewing machines to which they are com;

monly applied.

, As preferably constructed the device 7 prises a lower series of detached, spaced and. convergent forming-bars rigidly connected,

together and eachsustaining at its delivery end a forwardly and laterally extending. tuck-supporting wing' 'connected. along one edge with the adjacent edge of atwisted tuclcbending wing' constituting a continua:

tion of the forming-bar with its farther ex} 1 tremity turned into transverse relation therewith, and an upper series :ofrdetached, spaced and convergent oppositely directed" forming-bars entering the spaces between the bars of the lower seriesand rigidlycon nectedtogether, meansheing provided for rigidly connecting the upper andrlower sethe lowerhars each'having one limb extend ed forwardly 'fron the body, portion "and being shaped to form thedescrihed support' ries of forming-bars at opposite sides there of. Each of the forming-barsis preferably, constructed from a sheet metal blank bent into substantially ,Ushaped cross-section,

ing and hending lwingsl These bars are usually formed separately; and. secured in' spaced relation to cross-bars, and the upper T and lower of each are connected together at their opposite ends (for independent adjustment to insure the requisite spacingapart of the upper and lower series of forminghars to properly admit between them the .fahricto he successively crimped and'fold'ed,

The component tuck forming'bars. of'the Specification of Letters rat-em.

opposed series are formed,individually or orza-ntnsiu. HORTON, or'nmzasn'rn, NEW messy, iiss-ieuenro emcee v PatentedSeptQY,1915." Application filed August ZB, 191i. Srial No. 645,806. i

separately from each other, anda-renoit only I spaced apart, but are mutually unconnected at their bases or wider portions of their' cross section throughout the greater portion of their length and excepting where they are overlaid cross'harshy which t11'ey ar se-' cured, together, and preferably djetach ahly.

These-bars arepreferahlymade from sheet metal" hlanksin U-sh'ape'd' cross section, 1S6,

that they are hollow, throughout 'iitheir lengths, excepting where'reinforced to 'r'e-j ceive. the fastening. means. By this means th'e a'ttachment is given "a lightness fo fco'n StlIlCtlQlIl wh ch 13 not attained series of. forming bars cast integraland connected with biwes flillougllbuffhiir ngth'as here: 'BOfore; I I I n The invention will heinore fully, u d r stood reference to the, accompanying:

. Figure lis a front end elevati'on'of a mul drawings, in which-+- tipleheedle sewing machine- 'con structe' d in accordance with the' 'applicationof Bhilip Diehl and .Herman'n Eirch'horn, Serial ,No.' 595,356, filed December 3, 1910, and pro vided with the present improvement,'andi Fig.=2- is an elevation of the tucking attach ment viewed from thed'elivery'end. '3,

is a plan of a portion ofthesewingmachinei bed-plate and the tuckingattachhreht ap f plied theretofandFiga an'e'nd View time v same with the attachment partially in sec i ti'o'n; Fig 5 is a transversesectionalview of the attachment with the fabric in"'position, Fig. 6 is a plan of a. blank for one of the lower formingbars and Fig; "7 la spectiv'ef view of the'har bent into the re quired shape, Fig. 8 is a perspective View of i one .ofthe tuck-guides for directing the folds to thestitch-forming mechanisn'i. :Fig. 9 is a persp'ective viewof a; section of fabric folded and stitched by the use of the p esent 7 improvement.

The sewing machine show-n constructed with a hollow base 1 and a headcomprising the leed-plate 2 and bracket-arm 3 the head'of which is journaled the reciprocating arranged transversely of the direction 'of" of the bracket-arm, is "pressed downwardly? hymeansof a spring 7resting upon'th'up 25 body portion.

per end of the] same, and has secured to its cured upon thebed-plate 2. plate is provided with a series of needleloWer end the shanksS'of the tilting presserfeet 9 normally're'sting upon the top of the a raised portion 10 of the throat-plate 11 se- The throat apertures 13 and feed-dog apertures 1 1 to accommodate the feed-dogs 15.

'S e'cur edtto the, frontjof the base 1 are the,

brackets 16 whose upper members are channeled to receive the bars '17 connected. at

the outer ends byvtie-barsl7 and affording a" means of support for the attachment.

As represented more particularly in Fig. 3, the tuck-forming bars of each ser1es,wh1le similar in general form, are shaped individuallyxto su1t therespect ve positions wh ch i they occupy in the attachment.

, 6' represents the sheet metal blank from which the central lower forming-bar is made. .This blanklias ajbody portion a of-taper ,forrnhavlng a longitudlnal exten- 7 sionbj onone side of the center of. its larger end andan adjacent lateralextension 0 adjoining "the same and at the saline side of the The body portion ofthe blank is bent into substantially U-shaped cross-section to produce the forming-bar which is shallow at the rounded narrowerendof the blank and increases in depth while decreasing in width toward the opposite end so as to form at the top a rounded convergent fabric-bending facel8 merging into the flatside faces 19 and 20 With their'lower'fedgesat what may be. termed the base of the bar; The lateral eX-" tension 0 of the blank is bent at substantially V right angle tothe adjacent face 20 of the a body portion to form the tuck-supporting wing 21, andthefadja'cent extension b,which forms a continuation of the face 20,- is twisted into thetu'ck-bending Wing 22'whose forward I extremity is offsetabove the wingQl and has a slight upward nclination relative thereto, as represented more particularly n F1g.2.f- I o The upper tuck-forming bars are slmllarly constructed from sheet metal blanks similar in generalshape to that represented in Fig. 6but1 lackingthe extensions 5 and 0. These are. also bent into substantially U- shaped and taper for'rn increasing in depth from recelvlng to dellvery end, and are susf tained in theattachinent'in inverted position with their rounded fabric-bending faces .23. disposed intermediate and below and spaced from the corresponding portions 18 offtheblower 'ba'rs and their opposite side faces 24;,and. 25 substantially parallel with but separated from the corresponding faces of thelower bars,jas representedin Fig. 5.

.. "Fitfte'd'within and firmly secured to the lower hoHOW-fOrming-bars' are the blocks 26 and 27; into which are, tapped thefa'stening screws 28 passing through slots 29 in the 2 o a I 1,152,635

cross-bars 30 and 31 by means of which the forming-bars are secured for lateral adjust ment in spaced relation upon the cross-bars.

Thehollow upperforming-bars are similarly provided with the blocks 32 and into which are tapped the fastening screws 34 which pass through slots in the crossbars 36 and 37, respectively, by means of which the upper tuck-forming bars are rigidly'and adjustably secured in spaced relation to the crossbars 36 and 37.

At its opposite ends the cross-bar 36 has tapped through the same the spacing screws 38 whose points. rest upon the top of the lower cross-bar 30, while 'a cla1np-scrow 39 passing loosely through the upper cross-bar 1s 'tapped'into the lower crossbar so as to hold the points of the spacing screws 38 firmly seated. upon the lower cross-bar,

thereby providing means foradjustably securing the upper and lower series of forming-bars in operative relation. Passing loosely tln-ough apertures in the opposite ends of the upper cross-bars 37 are the spac ing screws 40 formed with necked heads 41 and tapped into the jlower cross-bars 31 be .neath. whichthey are provided with the jam-nuts 4-2.. The necked portion of each screw-head is embraced bythe slotted offset portion 14L- of a swivel-plate 45 secured to the upper crossbar for sustaining the spac ing screw 40 against endwise'movement in,

that these cross-bars should be independ ently adjustable in order, not only to change the spacing apart of the upperand lower series of tuck-forming members toaccommodate different thicknesses of fabric; but to adjustthe angular relation of such members under different conditions.

The lower faces of the tuck-supporting wings 21' and the lateral extensions 19" and 20 of the lower tuck-forming bars are secured by soldering, or otherwise, upon a bin transverse plate46 by means of which the delivery portions of the lower seriesof forming-bars are firmly secured together. The attachment rests mainly upon the sustainlng bars 17 and issecured in operative relation with the stitch-forming mechanism secured in position by'means of the fastening screws -18 passing through the extensions 19 and 20* and tapped into the bed plate2, as represented more particularly in Fig.3.

Secured upon the forward upper cross-bar 36by' means of the screws 19 are the for- I war dly' extending strips 50 carrying the mews cross-rod 51 in which are 1 secured the round 5 shanks/52 of the tuck-guidingblades53 which are provided with; the lateral in-gs 5% projecting beneath the tuck-bending i J sameby the fingers of the operatorupon the;

operative portionslSof the lower bars inter mediate the upper bars untilfithe 'progres-zsively crimped advance portion ofthefabric Wings 22 and WllQSQ' otherj edges 54?, are adapted to'ente-r the angles of; the bases of thetucks With the body fabric to. guide the same to. the stitch-forming mechanisms. The guiding" edge {ritof each Wing" M ,is

disposed upon the opposite side ofhthe needle-path from-the body of the tuck-guide.

Theupper tuck-forming bars are preferablymade somewhat shorter than the lower for f convenience in introducing the :fabric m,

ftherforward edge of which is placed upon the, outer extremities of the lower forming-bars.

and pushed forwardly by pressure of the becomes. sharply folded into standing tucks at the, delivery ends of the lower form-ingbars from Whichth'ey are delivercdnpon the twisted bending Wings 22' and introduced beneath the raised presser+foot 9, the angles oil the, tucks t with,theyadjacent body per-1 tions f of the fabrichavi'ng been delivered by the upper forming-barsupon the tuckguiding Wings 54', Whoseg uiding edges-54%: '-serve to present to the respective-needles of thestitch-forming mechanism the I bases of the tucks t to be stitched upon the adjacent b,od'y porti-o ns of the fabric. The 'presser foot having been lowered, the sewing machine is operated in the usual manner to draw the. Work throughtthe attachment as represented in Fig; 5, and stitch the several tucks therein by lines of stitches s, as repre v I sented inFig. 9. V a It has been: found in practice impracti-I cable to employ v in the-initial crimping and folding operation thin 'forming-bladesi'with sharp edges. presented to the fabric, for the; a

reason. that the latter. is required toibe 'draWninWardly from the flat condition in which it enters the folder into a series of. folds, the material moving across the bendingportions l8 and 23 of thelowerand uppertuck forming 'bars, respectively, While traveling lengthwise of the same. The presentation of abrupt operativeedges to the oppbsite faces of the vfabric in this operation would cause the creasing or puckering of the fabricand its imperfect delivery to the stitch-forming mechanism, but by employ ment of the rounded forming-members this these membe'rs necessitated rreplacement of the; Whole forming -platekwith "another,

Whereasaccording to thepresent improve,

1nentthebars are constructed separately or in groups or only a few connected together,

and material under such conditions. The

thereby saving the large amountof labor.

construction of the several bars: of sheet metal separately servesmaterially to lighten the structure Without. 1n anyway .1n]ur1n'g its effectiveness.

.ylt hasheretoforebeen the practicepas f shown in .the patent. before mentioned, to sustain the upper, tuck-forming remembers from the head of the bracket-arm ofthe ma chine, and independently of. the lower form ing-bars, This expedient 1 required the special fittmg'ofrthe bracket-arm head as well as the low-er part of the machine frame toaccommodate thew diierent parts of the attachment, whereas according tothe pres 'ent Iimprovemen tthe attachment v1s self+eon+ tain'ed and is adapted to be fittedto a single part of the machine, While its component members arefiadaptedfto be more directly andwmore rigidly secured together for co- 1n themultiple-needle machine'shown in I Fig. I the needle threads n "are ledi'from the source of supply through their respective operation-i11 performingtheir several tunetensions and through apertures in the crossbar 55 11-10011 "the needle-bar and thence through-a guide-bar 56 "secured upon the front of the bracket-arm head "from which they are "ledto theneedles. xWith machines of this type; employing a large number of needles andvemployed in the productionsimultaneously of'a corresponding number of tucks, the leading of the upper "threads to the needles doivn the front of the bracketarm-head renders it impracticable to secure tgzthe latter a bracket holding with 's'ufiicient r giditythe upper tuck-forming members, 11

and bygmounting suchmembers upon cross- Ibars secured at their opposite extremities upon similar cross bars connecting the lower formingmembers this difliculty is overcome and'ample space is provided at opposite sides ofthe forming members for those portions of the body fabric jadjoining the tucked portion," I I It is evident'thatthe severalfeatures of the present improvement may be used separately and that the component parts of the apparatus, as: above described, may be ma of the present invention,

inventiomjwhat I claim herein is 1''. A tuck-forming attachment for terially modified in construction and arrangement Without departure from thescope' 9 Having thus set-forth the nature of the n sewing machines, comprising a lower series of separate spaced and "convergent forming bars rigidly connected together and each having its delivery end a laterally twisted wing I 'witlrthat portion thereofimmediately adjacent said forming bar in alinement with one face-of the bar and with theextremity ofsaid twist-ed wing arranged transversely to'the same face of the bar, an upper series of spaced and convergent forming-bars en-' termg the-spaces between the bars of the lower. series and rigidly connected together, a series of tuck-guides disposed in register with the upper forming-bars and adapted to guide the bases ofthe tucks to the stitchforming mechanism, a rigid connection between said tuck-guides and the upperforming-bars, and means arranged at opposite sides of the series of upper andlower tucksecuring the forming I bars for. i ad ustably same together in fixed relation.

2. A tuckeforming-attachment for sewing machines, comprising a lower serles'of sepa i rate: spaced and" convergent forming-bars rigidly connected together and eachjhaving at its delivery-endl-a'laterally twisted wing with that portion thereof immediately adjacent. said; forming barinalinement with one face of the bar and with the extremity of-said twisted wing arrangedtransv ersely to the same face of the bar,

of spaced and convergent forming-bars enlower series andrigidlyconnected together,-

tering the spaces between the bars of the a series of tuck-guides disposed-in. register with the upper forming-bars and adapted to guide} the bases of the tricks Ito the stitch-j forming mechanism, and means for adjusting both the oangularlrelation and the spacing apart of the upper and; lower series of v tuck-forming bars.

3. Y A. tuck-forming attachment forsewing machines comprising a lower series-of separate, spaced and convergent forming-bars mutually unconnected at their bases through-, out the greater portion of their length and eachhaving at its delivery end' and at one 7 side. thereof a flat laterally extendingwing and abovethe same extending from the op-- posite, side a laterally twisted wing with 'bars also mutually unconnected at their bases throughout the greater portion of their length and entering thespaces between the bars of the lower series, means for sustaining 'the upper and lower series ofthe forming bars, and meansfor delivery of tucks from said bars in parallelism.

4. A tuck-forming attachment-for sewing an upper series rate, spaced and convergent forming-bars mutually unconnected at their bases through the greater portion of their length and each having atits delivery end and at one side thereof a fiat laterally extending wing and above the same extending from the opposite side a laterally twisted wing with that portion thereof immediately adjacent said forming bar in alinement with one face of the bar and with the extremity of said twisted wing arranged transversely to the same face of the bar, thebases of said bars being separated by an intervening opening throughout that part of the length of each from said wings at the delivery end to the opposite end, an upper series of separate and similarly spaced and convergent forming-bars also mutuallyunconnected at theirbases throughout the greater portion of their length and entering the spaces between the bars of the lower series, a series of'tuckguidesdisposed in register with the upper forming-bars and adapted to guide the bases 7 of the tucks therefrom to thestitch-forming mechanism, and means for rigidly connectingtogether the component forming-bars of each series.

5. Atuck-forming attachment forsewing machines comprising a lower series'of spaced forming bars hollow throughout the greater portion of their length and rigidly connected together and eachvformedof substantially inverted U-shaped cross-section with afiat lateral wing extending forwardly from the edgeof the extremity ofone member and a twistedwing extending forwardly from the same member and turned oppositely from said lateral wing at its forward end into transverse'relation with said meme ber' and oflset above said lateral wing, and an upper series'ofrformin'g-bars also hollow throughout the greater portion of their length and of substantially U-shaped cross section entering the spaces between the bars of'the lower series and rigidly connected together.

6. A tuck-forming attachment for sewing machines comprising a series of separate spaced and convergent forming elements of U-shaped cross-section, a series of spaced and, convergent forming elements of U- shaped cross-section entering the spaces between the elements of the first-named series,

means separatefrom'and overlying said elementsifor rigidly sustaining each forming element ofeach series. relatively to the others, and means whereby the tucks are delivered from said forming allelism.

7. A tuck forming attachment for sewing machinesz comprising a series of separate i spaced and convergent forming elements of U-shapedcross-section merging at one ex tremi'ty into: flat cross section with oppo-- elements in par- J sitely extending lateral wings, a series of spaced and convergent forming elements of U-shaped cross-section entering the spaces between the elements of the first-named series, means separate from and disposed crosswise of said elements for rigidly sustaining each forming element of each series relatively to the others, and means cooperating With said lateral wings whereby the tucks are delivered from said forming elements in parall0 lelism.

In testimony whereof, I have signed my name to this specification, in the presence of tWo subscribing witnesses.

CHARLES M. HORTON.

Witnesses:

H. A. KORNEMANN, J12, W. P. STEWART.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. r 

